Question

The sum of the internal angles of a polygon is 10 right angles. Then the number of sides is​

Answer 1

Answer:

angle 1 is 10

the ∆ is right angle ∆

10° + 90° + x = 180°

100° + x = 180°

x = 180° - 100°

x = 80° (answer)

Step-by-step explanation:

the sum three sides of ∆ is 180°

right angle = 90° (always )